commit 0bff4ccbfd3297b0adf690655d3e9ddb0033bc69
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Thu Oct 14 10:02:20 2021 -0700
committer GitHub <noreply@github.com> Thu Oct 14 20:02:20 2021 +0300
tree 439b5ad3c00be6899738d124277dc79daa50377b
parent 70b150a366e4d8e426f45d24a421fd70f833a8c5

[3.10] bpo-45461: Fix IncrementalDecoder and StreamReader in the "unicode-escape" codec (GH-28939) (GH-28943)

They support now splitting escape sequences between input chunks.

Add the third parameter "final" in codecs.unicode_escape_decode().
It is True by default to match the former behavior.
(cherry picked from commit c96d1546b11b4c282a7e21737cb1f5d16349656d)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Parser/string_parser.c

diff --git a/Parser/string_parser.c b/Parser/string_parser.c
index fb37d37..dcd298c 100644
--- a/Parser/string_parser.c
+++ b/Parser/string_parser.c
@@ -115,7 +115,7 @@ decode_unicode_with_escapes(Parser *parser, const char *s, size_t len, Token *t)
     s = buf;
 
     const char *first_invalid_escape;
-    v = _PyUnicode_DecodeUnicodeEscape(s, len, NULL, &first_invalid_escape);
+    v = _PyUnicode_DecodeUnicodeEscapeInternal(s, len, NULL, NULL, &first_invalid_escape);
 
     if (v != NULL && first_invalid_escape != NULL) {
         if (warn_invalid_escape_sequence(parser, *first_invalid_escape, t) < 0) {